Willem Huyberts (Hubrechts), an Anabaptist mar­tyr, burned at the stake on 21 February 1573 at Antwerp, Belgium, together with Lynken Ghyselleers and Lysken Pennaerts. Willem, apparently a young man, was not yet a member of the church; during his trial he confessed that he was not yet (re) bap­tized, but was eager to receive baptism. The authorities, assisted by the clergy, sought fanatically "to convert him," but in vain. Willem remained steadfast.